Plugin directing to wrong server after site move – where to check?

Actually using 3.03, with an Atahualpa theme …

I recently installed WP e-commerce but I don’t think this issue is specific to that plugin.

A while ago I migrated my WP site across to a new server. Everything has been working fine, all pointing to the right place UNTIL I install WP e-commerce, and am now (when I activate the plugin) getting an error message that suggests SOMETHING (but I don’t know what or where to find it) is pointing to the old server instead of the new.

One of the dozens of errors (all similar in various respects) says:

Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. File(/home/keyword/public_html/real/wp-content/uploads/2010/12) is not within the allowed path(s): (/var/users:/tmp:/usr/share/pear:/usr/lib/php:/var/www/html:/usr/local/apache-custs) in /var/users/username/domainname.com/htdocs/wp-includes/functions.php on line 2028

/home/keyword/public_html/real/wp-content/uploads/2010/12 is the path to the site on my old server

/var/users/username/domainname.com/htdocs/ is the path to the domain on my new server

Help!

When I installed WP e-commerce, there was nothing asking for the name of the server; it’s just a plugin and it didn’t ask for such details.

However, as it tries to work (when I activate it), it looks like it’s searching for those directions (where to upload the shopping cart, or whatever it’s trying to do) within my existing WP site and somehow I have something that I have forgotten to change but that doesn’t affect the usual running of WP.

I’ve checked wp-config and several other files (all that I can think of), just opening them and doing a search for one of the words in the old server path but have turned up nothing.

Then I went into my SQL5 database and ran a search there. It turned up a wp_options table within my database that has two occurrences of the old path. Is this a likely culprit? And if so, how do I edit this? There’s an edit button for the table within the database, so I tried to change the one instance I found. It hasn’t eliminated the error. And I don’t *really* know exactly what I’m doing.

Any ideas??

Is there any way I can run a search on the code within the site for a key word within the path? If I could just figure out where the dud pointer was I am guessing it’s fixable.

Any ideas MUCH appreciated!!